Body of Connecticut shooter Adam Lanza quietly claimed by his father

Newtown, Conn. shooter Adam Lanza's body has been claimed by his father.

The body of Newtown, Conn., shooter Adam Lanza was claimed by his father last week, a family spokesman said Monday. 

Peter Lanza claimed his son's body from the Connecticut medical examiner last Thursday, said family spokesman Errol Cockfield.

“Private arrangements took place over the weekend," Cockfield said. He declined to elaborate further about the nature of the arrangements.

Connecticut Chief State Medical Examiner H. Wayne Carver, confirmed that Lanza's body is "finally gone."

Adam Lanza, 20, killed 20 first-graders and six adults at Sandy Hook Elementary School on Dec. 14 and then committed suicide. He also killed his mother in their Newtown home before the rampag.

PHOTOS: Connecticut school shooting

A private funeral was held earlier this month in New Hampshire for his mother, Nancy Lanza, who was divorced from Peter Lanza.

Authorities have not offered a motive for the killings. State police say they have been exploring all aspects of Adam Lanza's life, including his education, family history and medical treatment for clues.

"Our family is grieving along with all those who have been affected by this enormous tragedy," Peter Lanza said in a statement in the days after the shooting. "No words can truly express how heartbroken we are. We are in a state of disbelief and trying to find whatever answers we can. We too are asking why."

Peter Lanza lives in Stamford, Conn., and is an executive with GE Energy Financial Services. 

Adam Lanza, who was known to be very shy, had a tight relationship with his mother but was estranged from his father after the couple's 2001 separation was finalized in a 2009 divorce.

FULL COVERAGE: Shooting at Connecticut school

Peter Lanza had seen his son weekly after the separation, according to a family acquaintance. But Adam Lanza began refusing to see him after Peter began seeing another woman whom he later married, according to Shelley Cudiner, an employee at the library at the University of Connecticut.

Adam Lanza also began refusing to see his brother, Ryan, an accountant in Manhattan, after their parents' 2009 divorce.

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Armstrong better, Green Day to resume tour in 2013

LOS ANGELES (AP) — Green Day is going back on the road.

The Grammy-winning punk band announced new tour dates Monday.

The band canceled the rest of its 2012 club schedule and postponed the start of a 2013 arena tour after singer-guitarist Billie Joe Armstrong's substance abuse problems emerged publicly in September when he had a profane meltdown on the stage of the iHeartRadio Music Festival in Las Vegas. The band's rep announced later that Armstrong was headed to treatment for substance abuse.

"I just want to thank you all for the love and support you've shown for the past few months," Armstrong told fans in a statement Monday. "Believe me, it hasn't gone unnoticed and I'm eternally grateful to have such an amazing set of friends and family. I'm getting better every day. So now, without further ado, the show must go on."

The tour is scheduled to begin March 28 at the Allstate Arena in the Chicago area. Tickets for postponed shows will be honored on the new dates, and refunds will be available for canceled shows.

"We want to thank everyone for hanging in with us for the last few months," the band said. "We are very excited to hit the road and see all of you again, though we regret having to cancel more shows."

The band released their most recent album, "Tre," on Dec. 11, more than a month ahead of schedule.

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Essay: In Pursuit of Answers One May Not Want to Know

I jogged into the Stanford Cancer Clinic with my boyfriend, the youngest people there by two decades. We stood there sweating and holding hands, a jarring sight in the sickly light.

“You are 18, right?” the receptionist asked. Behind me, a woman so gaunt that her cheekbones protruded rolled by in a wheelchair. The oncologist called me alone to the exam room, and I told her the story I had revealed to more doctors than friends: I carry the BRCA1 mutation, which gives you a 98 percent chance of developing cancer.

When my family found out that I might have inherited the mutation from my mother, we took it as a given that I would get tested. Scientists, atheists and lawyers, we are compulsively rational. Yet when I learned I carried the mutation, I felt the cruel weight of a paradox: you can never know whether you want to know until you already do.

At Stanford, I study artificial intelligence, in which math is used to resolve these sorts of dilemmas. My teachers claim that gaining information never hurts. It can be proved mathematically that a robot with more information never makes worse decisions But we are not robots. Our eyes don’t filigree the world with coordinates and probabilities, and they can be blinded by tears.

Still, we, too, display a preference for information. We dislike uncertainty so strongly that we sometimes even prefer bad news. One study of people at risk for a terminal disease found that those who learned they were going to die from it were happier a year later than those who remained uncertain about their fates. Most people have a deep intuition that a life lived cleareyed has inherent value, independent of whether the truth makes you happy. But surely this has limits.

I know there are some things I do not want to know: which other girls my boyfriend finds attractive or the day and manner of my death. The truth can hurt in two ways. It can worsen your options: you can’t live as happily with a significant other after learning of his infidelity. Or it can make you irrational: hearing about terrorists targeting airplanes may lead you to drive instead of fly, though planes remain much safer than cars.

So was I wrong to unwind my double helix?

My risks of getting cancer at 21 are too low for me to do anything differently to better my odds. The knowledge is both irrelevant and painful; it’s obsessed me and made me behave irrationally. I wake from nightmares in which I am dying from cancer. I reread the memoirs of patients with metastatic disease until I can’t see the text through my tears. In my supposedly rational pursuit of knowledge, I’ve gone a little mad.

Despite an excess of information, I pursued more, enrolling in Stanford’s cancer biology class. The professor filled his slides with dark oncological puns, lecturing with the almost robotic detachment I sometimes see in those who work closely with cancer. Maybe I, too, am becoming robotic. I can laugh at the puns, calmly press lecturers on survival rates for breast cancer, marvel at the elegant molecular mechanisms by which it eats us alive. Just as tumors eventually swell too large for their hosts to endure, will all this knowledge grow past what I can handle?

The prospect was too much for my mother, a far tougher woman than I am. When she received a diagnosis of breast cancer, she ordered the doctors to give her chemotherapy as rapidly as possible and recovered completely. But she refused to learn her chances of long-term survival or look at her medical records. I became the first in my family to read them, and when I learned her cancer had been unusually lethal, my father asked me not to tell her.

I cannot shake the thought that this mutation was given to me for a reason. I don’t believe in God. I know my chromosomes divided along a random schism, not a divine skein. But while I reject the theist’s idea of God-granted purpose, I accept the existentialist’s idea of crafting your own. The world may be only sound and fury, but we can choose to see patterns in that chaos, stories in the stars.

So I choose to believe that I have been given this mutation so that I can discover how to overcome it. Like the protagonist in “Flowers for Algernon,” I will be both scientist and patient. Even if this sense of purpose is illusory, it lets me do what I couldn’t before. Fear has sharpened me: I wake at 3 in the morning to refine biological algorithms or to read papers on ovarian cancer.

While I believe this knowledge has made me live better, I am not sure it’s made me happier. True, there was the day I dropped by Stanford’s Relay for Life, a fund-raiser for cancer research, ran farther than I ever had and walked home full of joyful purpose. There was also the night I lost it completely and sobbed for hours in my boyfriend’s arms.

In this oscillation between light and dark, one thing remains constant: I’m no longer so eager to illuminate my fate. Recently, I went to the Web site of 23andMe, a company that will read from your genome your risk of dying from a hundred diseases. I clicked through the testimonials and was unnerved by how similar our reasons were for wanting information. I looked down at my fingertips, tempted: what else in my genome waits to be found?

But then I clicked away. The Bible doesn’t tell us if Eve ate any more apples, but I have had my fill of revelations. I am 21 years old, and I want to be free to live a normal life: fate unbound by double helix, future exploding with possibility. I don’t want to know.

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Stocks turn up on hints of `fiscal cliff' deal

The stock market shot higher on Monday afternoon, in the year's final hour of trading, signaling that investors believe the politicians in Washington will work out a budget compromise to avoid the “fiscal cliff.”

The Dow was up 137 to 13,075 in the late afternoon, more than 1 percent. The Standard & Poor's 500 and the Nasdaq composite were up by more, with the Nasdaq rising nearly 2 percent.

It was a high note in what had been a choppy day for the market, as choppy as the “fiscal cliff” deal-making that has been yanking it around.

Stocks opened lower and struggled for direction in the morning. They jerked higher at midday, on reports that the bare outline of a deal to avoid the “cliff” had been knit together. Then, they lost some of those gains when President Barack Obama made an early afternoon appearance to say that a compromise was “within sight,” but not finalized. Then, in the late afternoon, they shot higher.

The market's indecisiveness overlaid a day of dramatic budget negotiations in Washington. If Republicans and Democrats can't agree to a new budget deal by midnight, then higher taxes and lower government spending will automatically kick in Tuesday — the so-called fiscal cliff.

That would hurt the economy and could even send it back into recession, many investors believe. But what might hurt more, they add, is the psychological impact of knowing that the government can't agree on a budget.

“We're having a fragile recovery, with the pain of 2008 still fresh on everybody's mind,” said Joe Heider, principal at Rehmann Group outside Cleveland. “It's fear of the unknown. And fear is one of the greatest drivers of the financial markets.”

The Dow Jones industrial average surged 99 points in midday trading after The Associated Press reported that Republicans and Democrats had agreed on some key aspects of a compromise budget plan. They cooled after Obama made it clear that a deal wasn't done. Then, around 2:45 p.m. EST, they started shooting higher again.

Shortly after 3 p.m. EST, the Standard & Poor's 500 index was up 21 to 1,423 and the Nasdaq composite index was up 57 to 3,017.

Investors' opinions about the “fiscal cliff,” and how much it matters, are varied.

Some are unruffled: They're confident that politicians will work out a last-minute deal, as they often do. Or they think that even if the U.S. does go over the “cliff,” it would be more akin to the anti-climactic Y2K scare than a true Armageddon. The “cliff's” impact would be felt only gradually, they reason. For example, workers might get more taxes withheld from their first couple of paychecks in the new year, but it's not as if they'd have to pay all their higher taxes up front on Tuesday. And Congress could always retroactively repeal those higher taxes.

Others are more concerned. The higher taxes and lower government spending could take more than $600 billion out of the U.S. economy and send it back into recession. Politically, the U.S. would send a message that its lawmakers can't cooperate. And investors would have no good read on the country's long-term policy for taxes and spending, or how the government plans to eventually trim its deficit.

That's made the fiscal cliff's impact on the stock market uneven. From mid-November through roughly mid-December, the stock market rose more or less steadily, despite the “cliff” looming on the horizon. It wasn't until shortly before Christmas, with still no deal in sight, that the “cliff” finally scared investors enough to send the market down.

Tim Speiss, partner in charge of the personal wealth advisers practice at EisnerAmper in New York, followed the “cliff” negotiations on Monday and wondered if the U.S. would get its debt rating cut again. The Standard & Poor's ratings agency cut its rating of the U.S. government amid similar negotiations in August 2011, when lawmakers were arguing over the government's borrowing limit. S&P said at the time that the “political brinksmanship” highlighted how “America's governance and policymaking (is) becoming less stable, less effective, and less predictable.” Its rating cut sent the stock market into a tailspin.

The other major ratings agencies, Moody's and Fitch, have suggested that they might lower their ratings of the U.S. because of the “fiscal cliff.”

“That is, unfortunately, the big story,” Speiss said.

It's also one of the only stories. There's been little other news to trade on during the holiday season, giving the “fiscal cliff” drama outsized influence. No major companies are scheduled to report earnings this week. The most significant economic indicator scheduled for this week, the government's monthly jobs report, won't be released until Friday.

Trading volume has also been light, with many investors still on vacation. That also makes the market more volatile: With fewer shares trading hands, it can be moved by relatively small trades.

Last week, about 2.2 billion shares traded hands each day on average. Throughout the year, the average has been closer to 3.6 billion.

The yield on the benchmark 10-year Treasury note rose to 1.76 percent from 1.70 percent late Friday, a sign that investors were moving money into stocks.

Some of the best-performing stocks for the year were those that had been hammered in 2011. Homebuilder PulteGroup, appliance maker Whirlpool and Bank of America all more than doubled over the year, after falling by double-digit percentages in 2011.

Some of the worst performers of the year were Best Buy, Hewlett-Packard and J.C. Penney. All are struggling to keep up with competitors who have adapted more quickly to changing technologies and changing customer tastes. They were all up Monday, but were each down at least 45 percent for the year.

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Boehner: Obama won't stand up to his own party on 'fiscal cliff'

WASHINGTON -- House Speaker John A. Boehner called it “ironic” that President Obama blamed Republicans for stalled negotiations on the "fiscal cliff" and accused the Democrat of being unwilling to stand up to his own party.

Responding to Obama’s appearance on NBC’s “Meet The Press,” the Ohio Republican said the GOP has been “reasonable and responsible” throughout the talks.

“In an effort to get the president to agree to cut spending -- which is the problem -- I put revenues on the table last year, and I put them on the table again last month,” Boehner said in a statement. “Republicans made every effort to reach the ‘balanced’ deficit agreement that the president promised the American people, while the president has continued to insist on a package skewed dramatically in favor of higher taxes that would destroy jobs.”

In an interview taped Saturday, Obama told NBC’s David Gregory that he remained “optimistic” that a deal could be reached, but said that in his mind, the sticking point was that Republicans “have had trouble saying yes to a number of repeated offers.”

QUIZ: How much do you know about the fiscal cliff?

“Congress has not been able to get this stuff done, not because Democrats in Congress don't want to go ahead and cooperate, but because I think it's been very hard for Speaker Boehner and Republican Leader [Mitch] McConnell to accept the fact that taxes on the wealthiest Americans should go up a little bit, as part of an overall deficit reduction package,” he said.

“I negotiated with Speaker Boehner in good faith and moved more than halfway in order to achieve a grand bargain.”

Earlier this month, Obama had offered to raise the income threshold for higher tax rates to $400,000, from the $250,000 he had campaigned on. Boehner pulled back from the negotiations and tried to pass what he called "Plan B," which would have boosted the threshold to $1 million. He failed to get support from House Republicans and did not bring it to the floor.

Don Stewart, a spokesman for Senate Republican Leader Mitch McConnell, responded that “while the president was taping those discordant remarks yesterday, Sen. McConnell was in the office working to bring Republicans and Democrats together on a solution. Discussions continue today.”

In his statement, Boehner noted that the House has passed multiple bills that would avert the entire fiscal cliff, addressing both the looming across-the-board tax increases and deep spending cuts.

“The president has never called for the Senate to act on those bills in any way. He instead has simply allowed the Democratic-controlled Senate to sit on them and lead our economy to the edge of the fiscal cliff,” Boehner said.

PHOTOS: Notable moments of the 2012 presidential election

The Senate has passed budget bills that the House has not acted upon.

The House is due to gavel in Sunday afternoon, with votes expected on unrelated bills. The Senate is in session while leaders and staff continue to seek a solution that would garner enough votes to move over to the House.

“We know that there are negotiations going on,” Sen. Barbara Boxer (D-Calif.) said on the Senate floor. “I really hope our leaders can find a way out of this.”

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'The Hobbit' stays atop box office for third week

LOS ANGELES (AP) — "The Hobbit: An Unexpected Journey" continues to rule them all at the box office, staying on top for a third-straight week and capping a record-setting $10.8 billion year in moviegoing.

The Warner Bros. fantasy epic from director Peter Jackson, based on the beloved J.R.R. Tolkien novel, made nearly $33 million this weekend, according to Sunday studio estimates, despite serious competition from some much-anticipated newcomers. It's now made a whopping $686.7 million worldwide and $222.7 million domestically alone.

Two big holiday movies — and potential Academy Awards contenders — also had strong openings. Quentin Tarantino's spaghetti Western-blaxploitation mash-up "Django Unchained" came in second place for the weekend with $30.7 million. The Weinstein Co. revenge comedy, starring Jamie Foxx as a slave in the Civil War South and Christoph Waltz as the bounty hunter who frees him and then makes him his partner, has earned $64 million since its Christmas Day opening.

And in third place with $28 million was the sweeping, all-singing "Les Miserables," based on the international musical sensation and the Victor Hugo novel of strife and uprising in 19th century France. The Universal Pictures film, with a cast of A-list actors singing live on camera led by Hugh Jackman, Anne Hathaway and Russell Crowe has made $67.5 million domestically and $116.2 worldwide since debuting on Christmas.

Additionally, the smash-hit James Bond adventure "Skyfall" has now made $1 billion internationally to become the most successful film yet in the 50-year franchise, Sony Pictures announced Sunday. The film stars Daniel Craig for the third time as the iconic British superspy.

"This is a great final weekend of the year," said Paul Dergarabedian, an analyst for box-office tracker Hollywood.com. "How perfect to end this year on such a strong note with the top five films performing incredibly well."

The week's other new wide release, the Billy Crystal-Bette Midler comedy "Parental Guidance" from 20th Century Fox, made $14.8 million over the weekend for fourth place and $29.6 million total since opening on Christmas.

Dergarabedian described the holding power of "The Hobbit" in its third week as "just amazing." Jackson shot the film, the first of three prequels to his massively successful "Lord of the Rings" series, in 48 frames per second — double the normal frame rate — for a crisper, more detailed image. It's also available in the usual 24 frames per second and both 2-D and 3-D projections.

"I think people are catching up with the movie. Maybe they're seeing it in multiple formats," he said. "I think it's just a big epic that feels like a great way to end the moviegoing year. There's momentum there with this movie."

"Django Unchained" is just as much of an epic in its own stylishly violent way that's quintessentially Tarantino. Erik Lomis, The Weinstein Co.'s president of theatrical distribution, said the opening exceeded the studio's expectations.

"We're thrilled with it, clearly. We knew it was extremely competitive at Christmas, particularly when you look at the start 'Les Miz' got. We were sort of resigned to being behind them. The fact that we were able to overtake them over the weekend was just great," Lomis said. "Taking nothing away from their number, it's a tribute to the playability of 'Django.'"

"Les Miserables" went into its opening weekend with nearly $40 million in North American grosses, including $18.2 on Christmas Day. That's the second-best opening ever on the holiday following "Sherlock Holmes," which made $24.9 million on Christmas 2009. Tom Hooper, in a follow-up to his Oscar-winner "The King's Speech," directs an enormous, ambitious take on the beloved musical which has earned a CinemaScore of "A'' from audiences and "A-plus" from women.

Nikki Rocco, Universal's head of distribution, said the debut for "Les Miserables" also beat the studio's expectations.

"That $18.2 million Christmas Day opening — people were shocked ... This is a musical!" she said. "Once people see it, they talk about how fabulous it is."

It all adds up to a record-setting year at the movies, beating the previous annual record of $10.6 billion set in 2009. Dergarabedian pointed out that the hits came scattered throughout the year, not just during the summer blockbuster season or prestige-picture time at the end. "Contraband," ''Safe House" and "The Vow" all performed well early on, but then when the big movies came, they were huge. "The Avengers" had the biggest opening ever with $207.4 million in May. The raunchy comedy "Ted" and comic-book behemoth "The Dark Knight Rises" both found enormous audiences. And Paul Thomas Anderson's challenging drama "The Master" shattered records in September when it opened on five screens in New York and Los Angeles with $736,311, for a staggering per-screen average of $147,262.

"We were able to get this record without scratching and clawing to a record," he said.

Estimated ticket sales for Friday through Sunday at U.S. and Canadian theaters, according to Hollywood.com. Where available, latest international numbers are also included. Final domestic figures will be released Monday.

1. "The Hobbit: An Unexpected Journey," $32.9 million ($106.5 million international).

2."Django Unchained," $30.7 million.

3."Les Miserables," $28 million ($38.3 million international).

4."Parental Guidance," $14.8 million ($7 million international).

5."Jack Reacher," $14 million ($18.1 million).

6."This Is 40," $13.2 million.

7."Lincoln," $7.5 million.

8."The Guilt Trip," $6.7 million.

9."Monsters, Inc. 3-D," $6.4 million.

10."Rise of the Guardians," $4.9 million ($11.6 million).

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Estimated weekend ticket sales at international theaters (excluding the U.S. and Canada) for films distributed overseas by Hollywood studios, according to Rentrak:

1."The Hobbit: An Unexpected Journey," $106.5 million.

2."Life of Pi," $39.2 million.

3."Les Miserables," $38.3 million.

4."Wreck-It Ralph," $20.4 million.

5."Jack Reacher," $18.1 million.

6."Rise of the Guardians," $11.6 million.

7."Parental Guidance," $7 million.

8."The Tower," $6.6 million.

9."Pitch Perfect," $6.2 million.

10."De L'autre Cote Du Periph," $4 million.

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Online:

http://www.hollywood.com

http://www.rentrak.com

___

Universal and Focus are owned by NBC Universal, a unit of Comcast Corp.; Sony, Columbia, Sony Screen Gems and Sony Pictures Classics are units of Sony Corp.; Paramount is owned by Viacom Inc.; Disney, Pixar and Marvel are owned by The Walt Disney Co.; Miramax is owned by Filmyard Holdings LLC; 20th Century Fox and Fox Searchlight are owned by News Corp.; Warner Bros. and New Line are units of Time Warner Inc.; MGM is owned by a group of former creditors including Highland Capital, Anchorage Advisors and Carl Icahn; Lionsgate is owned by Lions Gate Entertainment Corp.; IFC is owned by AMC Networks Inc.; Rogue is owned by Relativity Media LLC.

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Well: Exercise and the Ever-Smarter Human Brain

Anyone whose resolve to exercise in 2013 is a bit shaky might want to consider an emerging scientific view of human evolution. It suggests that we are clever today in part because a million years ago, we could outrun and outwalk most other mammals over long distances. Our brains were shaped and sharpened by movement, the idea goes, and we continue to require regular physical activity in order for our brains to function optimally.

Phys Ed

Gretchen Reynolds on the science of fitness.

The role of physical endurance in shaping humankind has intrigued anthropologists and gripped the popular imagination for some time. In 2004, the evolutionary biologists Daniel E. Lieberman of Harvard and Dennis M. Bramble of the University of Utah published a seminal article in the journal Nature titled “Endurance Running and the Evolution of Homo,” in which they posited that our bipedal ancestors survived by becoming endurance athletes, able to bring down swifter prey through sheer doggedness, jogging and plodding along behind them until the animals dropped.

Endurance produced meals, which provided energy for mating, which meant that adept early joggers passed along their genes. In this way, natural selection drove early humans to become even more athletic, Dr. Lieberman and other scientists have written, their bodies developing longer legs, shorter toes, less hair and complicated inner-ear mechanisms to maintain balance and stability during upright ambulation. Movement shaped the human body.

But simultaneously, in a development that until recently many scientists viewed as unrelated, humans were becoming smarter. Their brains were increasing rapidly in size.

Today, humans have a brain that is about three times larger than would be expected, anthropologists say, given our species’ body size in comparison with that of other mammals.

To explain those outsized brains, evolutionary scientists have pointed to such occurrences as meat eating and, perhaps most determinatively, our early ancestors’ need for social interaction. Early humans had to plan and execute hunts as a group, which required complicated thinking patterns and, it’s been thought, rewarded the social and brainy with evolutionary success. According to that hypothesis, the evolution of the brain was driven by the need to think.

But now some scientists are suggesting that physical activity also played a critical role in making our brains larger.

To reach that conclusion, anthropologists began by looking at existing data about brain size and endurance capacity in a variety of mammals, including dogs, guinea pigs, foxes, mice, wolves, rats, civet cats, antelope, mongooses, goats, sheep and elands. They found a notable pattern. Species like dogs and rats that had a high innate endurance capacity, which presumably had evolved over millenniums, also had large brain volumes relative to their body size.

The researchers also looked at recent experiments in which mice and rats were systematically bred to be marathon runners. Lab animals that willingly put in the most miles on running wheels were interbred, resulting in the creation of a line of lab animals that excelled at running.

Interestingly, after multiple generations, these animals began to develop innately high levels of substances that promote tissue growth and health, including a protein called brain-derived neurotrophic factor, or BDNF. These substances are important for endurance performance. They also are known to drive brain growth.

What all of this means, says David A. Raichlen, an anthropologist at the University of Arizona and an author of a new article about the evolution of human brains appearing in the January issue of Proceedings of the Royal Society Biology, is that physical activity may have helped to make early humans smarter.

“We think that what happened” in our early hunter-gatherer ancestors, he says, is that the more athletic and active survived and, as with the lab mice, passed along physiological characteristics that improved their endurance, including elevated levels of BDNF. Eventually, these early athletes had enough BDNF coursing through their bodies that some could migrate from the muscles to the brain, where it nudged the growth of brain tissue.

Those particular early humans then applied their growing ability to think and reason toward better tracking prey, becoming the best-fed and most successful from an evolutionary standpoint. Being in motion made them smarter, and being smarter now allowed them to move more efficiently.

And out of all of this came, eventually, an ability to understand higher math and invent iPads. But that was some time later.

The broad point of this new notion is that if physical activity helped to mold the structure of our brains, then it most likely remains essential to brain health today, says John D. Polk, an associate professor of anthropology at the University of Illinois at Urbana-Champaign, and co-author, with Dr. Raichlen, of the new article.

And there is scientific support for that idea. Recent studies have shown, he says, that “regular exercise, even walking,” leads to more robust mental abilities, “beginning in childhood and continuing into old age.”

Of course, the hypothesis that jogging after prey helped to drive human brain evolution is just a hypothesis, Dr. Raichlen says, and almost unprovable.

But it is compelling, says Harvard’s Dr. Lieberman, who has worked with the authors of the new article. “I fundamentally agree that there is a deep evolutionary basis for the relationship between a healthy body and a healthy mind,” he says, a relationship that makes the term “jogging your memory” more literal than most of us might have expected and provides a powerful incentive to be active in 2013.

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Obama blames GOP for 'fiscal cliff' brinksmanship

WASHINGTON -- President Obama blamed Republican leaders for the latest round of brinkmanship in Washington and said it was now up to lawmakers to find a way back from the so-called fiscal cliff.

In an interview with NBC’s “Meet the Press” aired Sunday, Obama said he had reached out to Republicans for weeks, but their refusal to raise taxes had blocked progress.

“They have had trouble saying yes to a number of repeated offers,” Obama said. In Friday’s meeting with congressional leaders at the White House, “I suggested to them if they can't do a comprehensive package of smart deficit reductions, let's at minimum make sure that people's taxes don't go up and that 2 million people don't lose their unemployment insurance.

“And I was modestly optimistic yesterday,” he added in the interview taped Saturday, referring to the aftermath of that meeting, “but we don't yet see an agreement. And now the pressure's on Congress to produce.”

PHOTOS: Notable moments of the 2012 presidential election

Senate leaders and their aides spent Saturday working on a deal that would protect most taxpayers from seeing their incomes taxes rise Jan. 1. The deal may also set new estate tax rates, prevent an expansion of the alternative minimum tax and extend unemployment insurance.

If the effort is successful, a final proposal is expected later Sunday, when senators are set to meet in party caucuses.

A spokesman for Senate Minority Leader Mitch McConnell responded to the president's criticism:

"While the president was taping those discordant remarks yesterday, Sen. McConnell was in the office working to bring Republicans and Democrats together on a solution," Don Stewart said. "Discussions continue today."

In the interview, Obama said he expected an “adverse reaction in the markets” and depressed consumer spending if lawmakers allow the tax increase to take effect as scheduled -- and he tried to lay the blame on Republicans. Economists have suggested the combination of the tax increases, along with nearly $65 billion in spending cuts, could knock the economy back into a recession.

Obama did not offer a clear strategy for avoiding those spending cuts, which Congress and the president agreed to in 2011 as a way to force themselves to act on a larger deficit reduction deal. That deal has remained elusive, and Obama said in the interview that Republicans have had trouble saying yes to his offers.

QUIZ: How much do you know about the fiscal cliff?

Pressed by host David Gregory on why that is, Obama answered:

“That's something you're probably going to have to ask them, because, David, you follow this stuff pretty carefully. The offers that I’ve made to them have been so fair that a lot of Democrats get mad at me. I mean, I offered to make some significant changes to our entitlement programs in order to reduce the deficit,” he said, referring specifically to a change in the way Social Security cost of living increases are calculated, which many liberal groups opposed.

“They say that their biggest priority is making sure that we deal with the deficit in a serious way, but the way they're behaving is that their only priority is making sure that tax breaks for the wealthiest Americans are protected. That seems to be their only overriding, unifying theme.”

Obama has tried to frame the debate as a battle over taxes. One Republican acknowledged Sunday that the president appears poised to win the political battle on that front. If lawmakers agree on allowing taxes to rise on top earners, “it will accomplish a political victory for the president,” said Sen. Lindsey Graham of South Carolina

“Hats off to the president. He stood his ground; he’s going to get tax rate increases … on upper income Americans. And the sad news for the country is we’ve accomplished very little in terms of not becoming Greece or getting out of debt.… Hats off to the president -- he won.”

[For the Record, 8:05 a.m. PST  Dec. 30: This post has been updated to include reactions to Obama's comments from McConnell's office.]

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Some Arctic seals now officially listed as threatened with extinction

First came the polar bear. Now, the federal government has added two other marine mammals to the list of creatures threatened with extinction because of vanishing sea ice in a warming Arctic.

The National Oceanic and Atmospheric Administration has officially listed bearded seal and the ringed seal as threatened under the Endangered Species Act.

The reason is not inadequate supplies of fish and other food for these seals, or excessive hunting by humans. It's the loss of their sea ice habitat.

Ringed seals give birth and nurse their pups in snow caves built on ice floes. Warming temperatures bring less snow and more rain, causing these snow caves to collapse and leaving pups vulnerable to freezing to death.

Bearded seals, with thick whiskers that help them find crabs, clams, cod and other bottom-dwelling prey, also give birth and nurse their pups on pack ice over shallow waters near food sources.

This September, the Arctic sea ice receded to record low levels, a troubling trend for sea ice-dependent animals.

"Sea ice is projected to shrink both in extent and duration, with bearded seals finding inadequate ice even if they move North," NOAA Fisheries said in announcing that two distinct populations of bearded seals and four subspecies of ringed seals qualified as threatened with extinction.

A team of federal scientists, said Jon Kurland, protected resources director for NOAA Fisheries’ Alaska region, "concluded that a significant decrease in sea ice is probable later this century and that these changes will likely cause these seal populations to decline.”

Unlike the fight over the polar bear listing, the fate of the seals garnered little attention. NOAA's Fisheries, the agency in charge of protecting most marine mammals, finalized the listing just before Christmas. It was timed to meet a court-ordered deadline that stemmed from a petition by the nonprofit Center for Biological Diversity.

It's part of the center's broader campaign to push the federal government to designate Arctic sea ice as critical habitat and then take steps to protect it. The only known way to do that is to reduce emissions of planet-warming carbon dioxide and other greenhouse gasses.

ken.weiss@latimes.com

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FBI removes many redactions in Marilyn Monroe file

LOS ANGELES (AP) — FBI files on Marilyn Monroe that could not be located earlier this year have been found and re-issued, revealing the names of some of the movie star's communist-leaning acquaintances who drew concern from government officials and her own entourage.

But the files, which previously had been heavily redacted, do not contain any new information about Monroe's death 50 years ago. Letters and news clippings included in the file show the bureau was aware of theories the actress had been killed, but they do not show that any effort was undertaken to investigate the claims. Los Angeles authorities concluded Monroe's death was a probable suicide.

Recently obtained by The Associated Press through the Freedom of Information Act, the updated FBI files do show the extent the agency was monitoring Monroe for ties to communism in the years before her death in August 1962.

The records reveal that some in Monroe's inner circle were concerned about her association with Frederick Vanderbilt Field, who was disinherited from his wealthy family over his leftist views.

A trip to Mexico earlier that year to shop for furniture brought Monroe in contact with Field, who was living in the country with his wife in self-imposed exile. Informants reported to the FBI that a "mutual infatuation" had developed between Field and Monroe, which caused concern among some in her inner circle, including her therapist, the files state.

"This situation caused considerable dismay among Miss Monroe's entourage and also among the (American Communist Group in Mexico)," the file states. It includes references to an interior decorator who worked with Monroe's analyst reporting her connection to Field to the doctor.

Field's autobiography devotes an entire chapter to Monroe's Mexico trip, "An Indian Summer Interlude." He mentions that he and his wife accompanied Monroe on shopping trips and meals and he only mentions politics once in a passage on their dinnertime conversations.

"She talked mostly about herself and some of the people who had been or still were important to her," Field wrote in "From Right to Left." ''She told us about her strong feelings for civil rights, for black equality, as well as her admiration for what was being done in China, her anger at red-baiting and McCarthyism and her hatred of (FBI director) J. Edgar Hoover."

Under Hoover's watch, the FBI kept tabs on the political and social lives of many celebrities, including Frank Sinatra, Charlie Chaplin and Monroe's ex-husband Arthur Miller. The bureau has also been involved in numerous investigations about crimes against celebrities, including threats against Elizabeth Taylor, an extortion case involving Clark Gable and more recently, trying to solve who killed rapper Notorious B.I.G.

The AP had sought the removal of redactions from Monroe's FBI files earlier this year as part of a series of stories on the 50th anniversary of Monroe's death. The FBI had reported that it had transferred the files to a National Archives facility in Maryland, but archivists said the documents had not been received. A few months after requesting details on the transfer, the FBI released an updated version of the files that eliminate dozens of redactions.

For years, the files have intrigued investigators, biographers and those who don't believe Monroe's death at her Los Angeles area home was a suicide.

A 1982 investigation by the Los Angeles District Attorney's Office found no evidence of foul play after reviewing all available investigative records, but noted that the FBI files were "heavily censored."

That characterization intrigued the man who performed Monroe's autopsy, Dr. Thomas Noguchi. While the DA investigation concluded he conducted a thorough autopsy, Noguchi has conceded that no one will likely ever know all the details of Monroe's death. The FBI files and confidential interviews conducted with the actress' friends that have never been made public might help, he wrote in his 1983 memoir "Coroner."

"On the basis of my own involvement in the case, beginning with the autopsy, I would call Monroe's suicide 'very probable,'" Noguchi wrote. "But I also believe that until the complete FBI files are made public and the notes and interviews of the suicide panel released, controversy will continue to swirl around her death."

Monroe's file begins in 1955 and mostly focuses on her travels and associations, searching for signs of leftist views and possible ties to communism. One entry, which previously had been almost completely redacted, concerned intelligence that Monroe and other entertainers sought visas to visit Russia that year.

The file continues up until the months before her death, and also includes several news stories and references to Norman Mailer's biography of the actress, which focused on questions about whether Monroe was killed by the government.

For all the focus on Monroe's closeness to suspected communists, the bureau never found any proof she was a member of the party.

"Subject's views are very positively and concisely leftist; however, if she is being actively used by the Communist Party, it is not general knowledge among those working with the movement in Los Angeles," a July 1962 entry in Monroe's file states.

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Anthony McCartney can be reached at http://twitter.com/mccartneyAP

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